thymidine
Definition
Noun: 1. A nucleoside component of DNA: A chemical compound that is one of the four fundamental building blocks (nucleosides) of deoxyribonucleic acid (DNA). It is composed of the nucleobase thymine linked to the sugar deoxyribose.
Usage and Examples
- Scientific Context: Thymidine is primarily used in molecular biology, biochemistry, and genetics to describe a specific DNA component or in research applications.
- The sequence of adenine, thymidine, guanine, and cytosine determines genetic information.
- Researchers added tritiated thymidine to the culture medium to track cell division.
Advanced Usage
- Biochemistry/Research: The term is often used in compound forms within specialized scientific literature to describe derivatives or processes.
- Thymidine kinase is an enzyme that phosphorylates thymidine.
- Thymidine triphosphate (dTTP) is the nucleoside triphosphate version used as a substrate during DNA synthesis.
Variants and Related Words
- Deoxythymidine: A synonymous, more chemically explicit name for thymidine, emphasizing the deoxyribose sugar.
- Thymidine monophosphate (dTMP): The phosphorylated form, a nucleotide which is the direct monomer incorporated into DNA.
- Thymine: The specific pyrimidine nucleobase component of thymidine.
Synonyms
- Deoxythymidine (technical synonym)
Notes on Meaning
This word has a single, precise meaning in biochemistry. It does not have common idiomatic expressions or phrasal verbs associated with it, as it is a specialized scientific term.
Noun
-
a nucleoside component of DNA; composed of thymine and deoxyribose
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